Answer:
A motor
Explanation:
(I'm not that good in physics but from what I know it might be motor or generator, I'm not 100% sure on this answer)
A ___ is a large ball of gas that generates its own energy. This energy is created by the fusion of ___ atoms to make ___.
Answer:
Star, hydrogen and energy
Explanation:
A star is a large ball of gas that generates its own energy by fusing hydrogen atoms to make helium. It is held together by its own gravity. This process emits a tremendous amount of energy, and some of the energy is in the form of light.
The energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. When the core is hot enough, nuclear fusion commences. Fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.
Lithium has an atomic number of 3. How many electrons does it have?
A 4
B. 1
C. 2
D. 3
Answer:
it has 3 electrons. brainliest please
According to the graph, how many atoms would remain after two half-lives?
20 atoms
80 atoms
40 atoms
50 atoms
Answer:
Let No be initial no of atoms
N = N0 / 2 after 1 half-life
N = N0 / 4 after 2 half-lives
So after 2 half-lives 20 of the 80 atoms remain
What process is represented by this redox equation ? 6H 2 O+6CO 2 C 6 H 12 O 6 +6O 2
What process is represented by this redox equation ?
6H 2 O+6CO 2 C 6 H 12 O 6 +6O 2
Answer:-This equation is of the process of photosynthesis. The proper equation is :-
6CO2+6H2O→C6H12O6+6O2.
A box is being moved with a velocity v by a force p (parallel to v) along a level horizontal floor. The normal force is FN, the kinetic firictional force is fk, and the weight of the box is mg. Decide which forces do positive, zero, or megative work. Provide a reason for each of your answers
can someone help? i don’t need 14
Answer:
Explanation:
11.) d
12.) f
13.) c
15.) i
pls give me brainliest
is a
The wire in a simple circuit
which forms an
unbroken pathway, allowing the
electric charges to flow.
A. switch
B. insulator
C. resistor
D. conductor
Answer:
I believe the answer is D: Conductor.
HELP ME SHIFT TO MHA PLEASE, (I have aphantasia, so I cant visualize ) But I want to shift, so please help me :(
Answer:
1 + 3 = 7. X = 2 -9+7=8
Explanation:
Here,
How much work is done by 0.070 m3 of gas, when the volume remains constant with pressure of 63 x 105 Pa?
Answer:
W = 0 J
Explanation:
The amount of work done by gas at constant pressure is given by the following formula:
[tex]W = P\Delta V[/tex]
where,
W = Work done by the gas
P = Pressure of the gas
ΔV = Change in the volume of the gas
Since the volume of the gas is constant. Therefore, there is no change in the volume of the gas:
[tex]W = P(0\ m^3)\\[/tex]
W = 0 J
Which position has the least amount of kinetic energy?
the position that has least kinetic energy is option D
What is the intensity of sound produced by an elephant's call if it has a power of 0.45 W and you are standing 32.5 m away from the lumbering beast
Answer:
I = 1.36 x 10⁻⁴ W/m²
Explanation:
The intensity of the sound produced by the Elephant can be calculated by using the following formula:
[tex]I = \frac{P}{A} \\\\[/tex]
where,
I = Intensity of sound = ?
P = power of sound = 0.45 W
A = area = πr² = π(32.5 m)² = 3318.3 m²
Therefore,
[tex]I = \frac{0.45\ W}{3318.3\ m^2} \\\\[/tex]
I = 1.36 x 10⁻⁴ W/m²
A resistor is connected to a 36v power supply. An ammeter measures a current of 2.0 A going through it. Determine the resistance in ohm
R = 18 ohms
Explanation:
Given:
V = 36 volts
I = 2.0 A
R = ?
Use Ohm's law to solve for the resistance:
V = IR
or
R = V/I
= (36 volts)/(2.0 A)
= 18 ohms
Which is not true about the role of gravity in the formation of planets?
Dust and gas particles that were attracted to each other began to rotate into a protoplanetary disk.
Gravity between planetesimals caused them to join together into conglomerate clumps. Our solar system is the only place in the universe where gravity played a key part in the formation of planets.
Gravity of larger objects in orbit around the sun attracted, and cleared the orbital path of, smaller planetesimals, gas, and dust.
Our solar system is the only place in the universe where gravity played a key part in the formation of planets.
This is Flase
Heat is the measurement of energy from all the particles that are in a substance.
Please select the best answer from the choices provided : T/F
Explanation:
the correct answer is (true) if am not mistaking incase am wrong sorry
the spring constant for each of these springs 100 000 N m-1. Calculate the distance that each of these rear springs is compressed by this vehicle as shown in the diagram above
Answer:
sorry
Explanation:
POSSIBLE 1. Which of the following are examples of a physical reactions: (1) ice melting, (2) pencil breaking, (3) iron rusting, (4) wood burning? a. 1.4 b. 3,4 c. 2.3 d. 1,2
Answer:
D) 1 & 2
Explanation:
Ice melting can be refrozen and although the pencil breaks, it doesn't change the chemical formula of the pencil
The diagram below shows a periodic wave. Which two points on the wave are 180 degrees out of phase?
Please explain as well, thanks so much
Answer:
A and C are 180 deg out of phase (opposite points on a 360 deg wave)
The two points on the periodic wave which are 180 degrees out of phase are point A and Point C.
When two points of wave are out of phase?The two points of a wave is said to be out of phase when they show up or down motion at different times.
If a point on the wave, say (X) is reached to the maximum or minimum point before the other point. Then these two points are said to be out of phase.
Also, when the points are 180 degree apart from each other. Which means if a point is in the crest of the wave and other is on the through.
The diagram below shows a periodic wave. In this diagram,
A and I are the end points of the periodic wave.B,C,D,E,F and G are the other points on the periodic wave.Here, the point A and C are opposite point of each other. So they are 180 degrees out of phase.Hence, the two points on the periodic wave which are 180 degrees out of phase are point A and Point C.
Learn more about the periodic wave here;
https://brainly.com/question/16749356
An object is 10.0 cm from a plane mirror. The object is 5.00 cm tall.
a. What is the image position?
Answer:
...............
Explanation:
If an object is placed in front of a plane mirror, the size of the object remains same. This is the property of plane mirror. So the height of the object will be 10cm only.
The image position in the plane mirror is 5 cm.
What is meant by magnification ?The ratio of the height of the formed image to the height of the object is used to define the magnification created by the mirror.
Here,
Position of the object, u = -10 cm
Height of the object, h = 10 cm
We know that magnification produced by a plane mirror is 1.
So,
Magnification, m = -v/u
1 = -v/u
Therefore, image distance,
v = -u
v = 5 cm
Hence,
The image position in the plane mirror is 5 cm.
To learn more about magnification, click:
https://brainly.com/question/12966853
#SPJ2
The bumper cars crash into each other and stop. Explain why both bumper cars stop after the crash. [4marks]
Answer:
The collision is inelastic
Explanation:
There are two kinds of collision; elastic collision and inelastic collision. In an elastic collision, both momentum and kinetic energy are conserved.
However, in an inelastic collision, kinetic energy is not conserved. So, when the bumper of two cars collide, the cars come to a stop because the collision is inelastic.
what do you think "you see the world the way you feel" means
a bicycle process 1000 unit of momentum what would be the bicycles Momentum if its mass is tripled
A solid metal ball with a mass of 10.0 kg is placed on a smooth floor what force would be needed to accelerate the ball at a rate of 2.0 m/s2.
40 N
20 N
5 N
0.2 N
9. Bryce drove his car 10 km from his house to Belle Plaine. It took him 8 minutes. He got stopped at a long
traffic light on the return home and so he took 2 minutes longer on the return trip. What was Bryce's average
speed in km per minute? (3 pt)
Answer:
2 km/minuteExplanation:
Here, we are asked to calculate the average speed in km/minute.
As we know that,
Average speed = Total distance ÷ Total time takenHere,
→ Total distance = 10 km + 10 km
Because, he first drove 10 km from his house to Belle Plaine and then he again came back to his house.→ Total distance = 20 km
→ Total time = 8 minutes + 2 minutes
→ Total time = 10 minutes
Substitute the values in the formula of average speed,
→ Average speed = Total distance ÷ Total time taken
→ Average speed = 20km ÷ 10 minutes
→ Average speed = 2 km per minuteLight of wavelength 505 nm passes through a single slit of width 4.32 x 10-5 m. At what angle does the first interference minimum (m = 1) occur?
Answer:
0.665
Explanation:
I did the work. Just plug everything in from the formula. Look at the lesson manual.
How does the current in a circuit change if the resistance is doubled? The current is halved. The current is doubled. The current is multiplied by four. The current stays the same.
Answer:
The current is halved
Explanation:
The relationship between the current and the resistance is given by Ohm's Law, as follows:
[tex]V = IR\\I = \frac{V}{R}[/tex]
where,
V = Voltage
I = Current
R = Resistance
Therefore, if we double the resistance:
[tex]I' = \frac{V}{2R}\\\\I' = \frac{1}{2}I[/tex]
Hence the correct option is:
The current is halved
Answer:
A
Explanation:
what does thermal energy do
Answer:
Thermal energy can be transferred to one object to another in the form of heat. It causes molecules and atoms to collide with each other because of the rising of heat.
Explanation: Well thermal energy is a example of kinetic energy. It is heated by motion. It is heat that can be measured
Three 18-ohm resistors are connected in series with an ideal 12-volt battery. What is the equivalent resistance of the circuit?
Answer:
RT = 54 Ohms
Explanation:
Given the following data;
Resistance = 18 Ohms
Voltage = 12 Volts
To find the equivalent resistance (RT) of the circuit;
For a series connection, the formula is;
RT = R1 + R2 + R3
RT = 18 + 18 + 18
RT = 54 Ohms
Or
RT = 3*R
RT = 3 * 18
RT = 54 Ohms
How many snowmen do you think this sled can destroy? Explain your answer.
Answer:
342,690
Explanation:
I think, given 342,690 snowmen down a giant hill, that sled could destroy every single snowman :)
please dont waste my time with those 'answer is in the file"
The force exerted by water and air on the skier is 50 Newtons (N) to the left. The force exerted by the boat on the skier is 40 Newtons (N) to the right. How will the unbalanced forces change the motion of the skier
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Actually Welcome to the concept of Net force on a body.
We know that net force on a body is the force that is calculated from all direction and added , if there is any force remained at last, then the forces are unbalanced,
and if the net force on a body is Zero, then it is a balanced force,
here,
Force to left on skier = 50 N
Force to right on skier = 40 N
hence the net force = left force - right force
Net force = 50 - 40 ==> 10 N
hence the Net force is 10 N in the left direction of the skier.
can someone please help me please I will mark brainlist and give you 5 stars pleasee
Answer:
If I did my calculations correctly then the answer is 11 but I may be weong
Answer:
it's 11
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